public static string WriteToString(QueryLanguage language, Expression expression)
        {
            StringWriter sw = new StringWriter();

            Write(sw, language, expression);
            return(sw.ToString());
        }
Beispiel #2
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            internal static HashSet <Expression> Nominate(QueryLanguage language, Expression expression)
            {
                Nominator nominator = new Nominator(language);

                nominator.Visit(expression);
                return(nominator.candidates);
            }
Beispiel #3
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 private SqlFormatter(QueryLanguage language, bool forDebug)
 {
     this.language = language;
     this.sb       = new StringBuilder();
     this.aliases  = new Dictionary <TableAlias, string>();
     this.forDebug = forDebug;
 }
Beispiel #4
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        public static ProjectedColumns ProjectColumns(QueryLanguage language, Expression expression, IEnumerable <ColumnDeclaration> existingColumns, TableAlias newAlias, IEnumerable <TableAlias> existingAliases)
        {
            ColumnProjector projector = new ColumnProjector(language, expression, existingColumns, newAlias, existingAliases);
            Expression      expr      = projector.Visit(expression);

            return(new ProjectedColumns(expr, projector.columns.AsReadOnly()));
        }
        public static SelectExpression AddRedundantSelect(this SelectExpression sel, QueryLanguage language, TableAlias newAlias)
        {
            var newColumns =
                from d in sel.Columns
                let qt = (d.Expression is ColumnExpression) ? ((ColumnExpression)d.Expression).QueryType : language.TypeSystem.GetColumnType(d.Expression.Type)
                         select new ColumnDeclaration(d.Name, new ColumnExpression(d.Expression.Type, qt, newAlias, d.Name), qt);

            var newFrom = new SelectExpression(newAlias, sel.Columns, sel.From, sel.Where, sel.OrderBy, sel.GroupBy, sel.IsDistinct, sel.Skip, sel.Take, sel.IsReverse);

            return(new SelectExpression(sel.Alias, newColumns, newFrom, null, null, null, false, null, null, false));
        }
Beispiel #6
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 private ColumnProjector(QueryLanguage language, Expression expression, IEnumerable <ColumnDeclaration> existingColumns, TableAlias newAlias, IEnumerable <TableAlias> existingAliases)
 {
     this.language        = language;
     this.newAlias        = newAlias;
     this.existingAliases = new HashSet <TableAlias>(existingAliases);
     this.map             = new Dictionary <ColumnExpression, ColumnExpression>();
     if (existingColumns != null)
     {
         this.columns     = new List <ColumnDeclaration>(existingColumns);
         this.columnNames = new HashSet <string>(existingColumns.Select(c => c.Name));
     }
     else
     {
         this.columns     = new List <ColumnDeclaration>();
         this.columnNames = new HashSet <string>();
     }
     this.candidates = Nominator.Nominate(language, expression);
 }
Beispiel #7
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 protected SqlFormatter(QueryLanguage language)
     : this(language, false)
 {
 }
        public static ProjectionExpression AddOuterJoinTest(this ProjectionExpression proj, QueryLanguage language, Expression expression)
        {
            string           colName      = proj.Select.Columns.GetAvailableColumnName("Test");
            var              colType      = language.TypeSystem.GetColumnType(expression.Type);
            SelectExpression newSource    = proj.Select.AddColumn(new ColumnDeclaration(colName, expression, colType));
            Expression       newProjector =
                new OuterJoinedExpression(
                    new ColumnExpression(expression.Type, colType, newSource.Alias, colName),
                    proj.Projector
                    );

            return(new ProjectionExpression(newSource, newProjector, proj.Aggregator));
        }
Beispiel #9
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 public QueryTranslator(QueryLanguage language, QueryMapping mapping, QueryPolicy policy)
 {
     this.linguist = language.CreateLinguist(this);
     this.mapper   = mapping.CreateMapper(this);
     this.police   = policy.CreatePolice(this);
 }
Beispiel #10
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 private RelationshipBinder(QueryMapper mapper)
 {
     this.mapper   = mapper;
     this.mapping  = mapper.Mapping;
     this.language = mapper.Translator.Linguist.Language;
 }
Beispiel #11
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 private ClientJoinedProjectionRewriter(QueryPolicy policy, QueryLanguage language)
 {
     this.policy   = policy;
     this.language = language;
 }
 public static Expression Rewrite(QueryLanguage language, Expression expr)
 {
     return(new AggregateRewriter(language, expr).Visit(expr));
 }
 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return(new SingletonProjectionRewriter(language).Visit(expression));
 }
Beispiel #14
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 private OrderByRewriter(QueryLanguage language)
 {
     this.language          = language;
     this.isOuterMostSelect = true;
 }
Beispiel #15
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 private Parameterizer(QueryLanguage language)
 {
     this.language = language;
 }
 protected DbExpressionWriter(TextWriter writer, QueryLanguage language)
     : base(writer)
 {
     this.language = language;
 }
Beispiel #17
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 public static Expression Parameterize(QueryLanguage language, Expression expression)
 {
     return(new Parameterizer(language).Visit(expression));
 }
Beispiel #18
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 private Nominator(QueryLanguage language)
 {
     this.language   = language;
     this.candidates = new HashSet <Expression>();
     this.isBlocked  = false;
 }
Beispiel #19
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 public QueryLinguist(QueryLanguage language, QueryTranslator translator)
 {
     this.language   = language;
     this.translator = translator;
 }
 public static void Write(TextWriter writer, QueryLanguage language, Expression expression)
 {
     new DbExpressionWriter(writer, language).Visit(expression);
 }
Beispiel #21
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 public static ProjectedColumns ProjectColumns(QueryLanguage language, Expression expression, IEnumerable <ColumnDeclaration> existingColumns, TableAlias newAlias, params TableAlias[] existingAliases)
 {
     return(ProjectColumns(language, expression, existingColumns, newAlias, (IEnumerable <TableAlias>)existingAliases));
 }
 private SingletonProjectionRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Beispiel #23
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 private SkipToRowNumberRewriter(QueryLanguage language)
 {
     this.language = language;
 }
 private CrossApplyRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Beispiel #25
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 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return(new SkipToRowNumberRewriter(language).Visit(expression));
 }
Beispiel #26
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 public static Expression Rewrite(QueryLanguage language, Expression expression)
 {
     return(new OrderByRewriter(language).Visit(expression));
 }
 private SkipToNestedOrderByRewriter(QueryLanguage language)
 {
     this.language = language;
 }
Beispiel #28
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 public static Expression Rewrite(QueryPolicy policy, QueryLanguage language, Expression expression)
 {
     return(new ClientJoinedProjectionRewriter(policy, language).Visit(expression));
 }
 private AggregateRewriter(QueryLanguage language, Expression expr)
 {
     this.language = language;
     this.map      = new Dictionary <AggregateSubqueryExpression, Expression>();
     this.lookup   = AggregateGatherer.Gather(expr).ToLookup(a => a.GroupByAlias);
 }